Exam 27: Medically Significant Fungi

After returning from a vacation trip to the Amazon River delta in Brazil, a man notices a white dirtlike substance on his axilla hair that does not wash off in the shower.His health care provider samples the hairs and sends them to the laboratory for culture.Straw-colored yeastlike colonies show the following microscopic morphology.This is most consistent with an identification of:

(Multiple Choice)

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Question 21

What organism frequently presents in fungus balls?

(Multiple Choice)

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Question 22

A patient who wears long-term contact lenses comes to her physician after noting a small spot on her cornea.Collection of the lesion for culture produced a fast-growing mold with a slight pink color on the surface.Microscopic review showed the following organism.This organism is most likely:

(Multiple Choice)

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Question 23

What is the causative agent of black piedra?

(Multiple Choice)

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Question 24

This organism was isolated from a diabetic patient with a sinus infection.The mold was extremely fast growing with a dirty white surface.Microscopic observation revealed wide aseptate hyphae without rhizoids.This organism is most likely:

(Multiple Choice)

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Question 25

The following organism is isolated from a case of tinea capitis.The organism grew rapidly producing tan mold colonies.This organism is most likely:

(Multiple Choice)

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Question 26

Showing 21 - 26 of 26

Exam 27: Medically Significant Fungi

What organism frequently presents in fungus balls?

A patient who wears long-term contact lenses comes to her physician after noting a small spot on her cornea.Collection of the lesion for culture produced a fast-growing mold with a slight pink color on the surface.Microscopic review showed the following organism.This organism is most likely:

What is the causative agent of black piedra?

This organism was isolated from a diabetic patient with a sinus infection.The mold was extremely fast growing with a dirty white surface.Microscopic observation revealed wide aseptate hyphae without rhizoids.This organism is most likely:

The following organism is isolated from a case of tinea capitis.The organism grew rapidly producing tan mold colonies.This organism is most likely:

Bacterial Cell Structure, Physiology, Metabolism, and Genetics

Host-Parasite Interaction

The Laboratory Role in Infection Control

Control of Microorganisms

Performance Improvement in the Microbiology Laboratory

Specimen Collection and Processing

Microscopic Examination of Materials From Infected Sites

Use of Colony Morphology for the Presumptive Identification of Microorganisms

Biochemical Identification of Gram-Negative Bacteria

Immunodiagnosis of Infectious Diseases

Applications of Molecular Diagnostics

Antimicrobial Agent Mechanisms of Action and Resistance

Antimicrobial Susceptibility Testing

Staphylococci

Streptococcus, Enterococcus, and Other Catalase-Negative, Gram-Positive Cocci

Aerobic Gram-Positive Bacilli

Neisseria Species and Moraxella Catarrhalis

Haemophilus and Other Fastidious Gram-Negative Bacilli

Enterobacteriaceae

Vibrio, Aeromonas, Plesiomonas, and Campylobacter Species

Nonfermenting and Miscellaneous Gram-Negative Bacilli

Anaerobes of Clinical Importance

The Spirochetes

Chlamydia, Rickettsia and Similar Organisms

Mycoplasma and Ureaplasma

Mycobacterium Tuberculosis and Nontuberculous Mycobacteria

Diagnostic Parasitology

Clinical Virology

Agents of Bioterror and Forensic Microbiology

Biofilms: Architects of Disease

Upper and Lower Respiratory Tract Infections

Skin and Soft Tissue Infections

Gastrointestinal Infections and Food Poisoning

Infections of the Central Nervous System

Bacteremia and Sepsis

Urinary Tract Infections

Genital Infections and Sexually Transmitted Diseases

Infections in Special Populations

Zoonotic Diseases

Ocular Infections

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